Size: 12.991" x 12.009" x 8.079" Weight: 28.16 oz Material: 450d PET body fabric (100% Recycled) Warranty: Lifetime warranty against manufacturer's defects Linear Inches: 33.07" A cornerstone of Mountainsmith's product line for 30+ years, the iconic Day Lumbar Pack is brand new for 2012, with new updates and features, but still possessing the performance and durability you have come to know and trust.